CN1024284C - Vehicle gasoline and its preparation from light oil made from coal - Google Patents
Vehicle gasoline and its preparation from light oil made from coal Download PDFInfo
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- CN1024284C CN1024284C CN 86101179 CN86101179A CN1024284C CN 1024284 C CN1024284 C CN 1024284C CN 86101179 CN86101179 CN 86101179 CN 86101179 A CN86101179 A CN 86101179A CN 1024284 C CN1024284 C CN 1024284C
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- reforming
- fraction
- light oil
- reformate
- coal
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Abstract
The present invention relates to a vehicle gasoline and a preparation method thereof. The vehicle gasoline is prepared from purified or refined light oil made from coal boiling range of which is 60 to 185 DEG C by catalytic reforming.
Description
The present invention relates to a kind of motor spirit and a kind of this oily processing method of producing, this method be through purification or the purified boiling range from 60 ° to 185 ℃ coal system light oil technology by catalytic reforming.
Hard coal can obtain light oil, middle fraction oil, heavy oil and pitch fraction and splitting gas through the liquid-phase hydrogenatin cracking.Resulting oil phase fraction continues to carry out gas phase hydrogenation reprocessing with hydrogen, and current hydrogenation carries out in gas phase.
Coal passes through hydrocracking, obtains coal system light oil through refining and heat of hydrogenation cracking again, and this light oil must carry out catalytic reforming more just can make it reach the specification that is suitable for Otto engine usefulness gasoline.In order to keep activity of such catalysts, reformer feed must and be removed sulfur-bearing, nitrogenous or oxygen containing heterogeneous ring compound carefully through refining.
In the reformed gasoline that obtains by coal system light oil, though the high boosting of octane rating that helps of benzene content, promptly help the antiknock value of Otto engine with gasoline, but the specification that has surpassed Otto-gasoline owing to the density of the high reformed gasoline of benzene content, so need do necessary restriction to the benzene content of reformed gasoline, make its highest 5%(of being no more than weight).
Thereby propose following problem, from coal system light oil, extract the low reformed gasoline of benzene content, make it can satisfy Otto engine with all specification index of premium motor fuel.
The method that solves this problem is purifying or the reformer feed of purified coal system light oil is divided into two fractions through distillation, and the boiling range fraction more than 85 ℃ carries out catalytic reforming, about 85 ℃ of following boiling range fractions and the merging of gained reformate.
The benzene content of the about fraction below 85 ℃ of boiling range is lower, and hexanaphthene content is higher relatively, and it also has lower density in addition, and the reformate of this fraction and gained merges, and can reach the density index of premium motor fuel without difficulty.The fraction of boiling range is pressed the usual method catalytic reforming more than 85 ℃, makes this moment cyclanes compound be dehydrogenated to aromatic hydrocarbons, aliphatic hydrocarbon or cyclanes compound isomerization and aliphatic hydrocarbon especially and carries out the dehydrocyclization reaction.Long chain hydrocarbon is thermally cracked to hydrocarbon polymer into short chain by dehydrogenation, the alkane that alkene fracture material that is generated by cracking and hydrogen affixture have all become short chain.The hydrogen and the C that in these reactions, also have cracking to go out
1～C
4The nytron deposits yields.All all kinds of reactions of carrying out all help improving the antiknock value of this reformed gasoline in reforming process.
The basis of the present invention's design is that about fraction below 85 ℃ is told with distillation method, joins in the reformate again without reforming reaction.Because about fraction below 85 ℃ has high relatively hexanaphthene content,, it will cause improving greatly in the reformate content of benzene if reforming through dehydrogenation.
According to the present invention, preferably adopt atmospheric distillation that reformer feed is separated.
Use processing method can make the benzene content of resulting reformate be controlled at the highest 5%(of being no more than weight rightly), and need not to mix or be admixed to can make in the petroleum reforming gasoline with other component to meet the DIN(Deutsche Industry Norm) premium motor fuel of 5-1600.
Press the principle of operation of being invented, be described further by means of following example and appended schema.
100 parts (weight) enters common rectifying tower from the reformate raw material (streams 1) of coal and is separated into tower liquid product (streams 2) and overhead product (streams 3).Streams 2 boiling ranges are 88～185 ℃, streams 3 boiling range SB≤88 ℃.
The reformate raw material of 100 parts (weight) obtains 71.6 parts of (weight) streams 2 and 28.4 parts of (weight) streams 3.
Streams 3 has following performance: benzene content 10.3%(weight); Density is 0.74 grams per milliliter in the time of 15 ℃; Analyzing octane value (ROZ)/engine octane number (MOZ) is 78.9/75.9.Streams 3 does not need other processing, needn't enter reformer yet.
Streams 2 under 30 bar pressures and 490 ℃ of temperature of reaction, is carried out reforming reaction with the input speed (WHSV) of 2 kilograms of feeding quantity/kilogram catalyzer hour through a platinum-reforming catalyst.
Except gaseous hydrocarbon (methane is to butane) and hydrogen, obtain the reformate streams 4 of 65.9 parts (weight).It has following performance: benzene content 1.5%(weight); Density is 0.830 grams per milliliter in the time of 15 ℃; ROZ/MOZ is 100.5/89.7.After mixing, streams 3 and streams 4 obtain the streams 5 of 94.3 parts (weight), motor spirit promptly of the present invention, and its performance is as follows:
Benzene content 4.3%(weight)
Density 0.797 grams per milliliter
ROZ/MOZ94.4/85.0
If 100 parts of (weight) reformer feeds are without prior distillation, and reform with same condition, obtain the reformate of 90.8 parts (weight), its performance is as follows:
Benzene content 12.3%(weight)
Density (15 ℃ time) 0.821 grams per milliliter
ROZ/MOZ96.4/85.4
Invention can realize following advantage according to this: benzene content and the density of final products all can be reduced to the specification standards permissible value, and have improved the yield of motor petrol, and ROZ/MOZ only has slightly reduction simultaneously.
Claims (4)
1, a kind of motor spirit, this oil be with through purify or the purified boiling range approximately from 60 to 185 ℃ coal system light oil obtain by the catalystic reforming method processing, material before the reforming reaction is divided into two fractions with distillating method, boiling point directly enters catalytic reforming at the fraction more than 85 ℃, and boiling point merges about fraction below 85 ℃ and reformate.
2, process purification or about 60 to the 185 ℃ coal system light oil of purified boiling range are produced the processing method of motor spirit by catalytic reforming, it is characterized in that the material that enters before reforming separates with distillating method, the boiling range fraction directly enters catalytic reforming more than 85 ℃, then merges with reformate about the fraction of 85 ℃ of following boiling ranges.
3, by the described method of claim 2, the material that it is characterized in that entering before reforming separates with the air distillation method.
4, by the described method of claim 2, it is characterized in that the highest 5%(of the being about weight of resulting reformate benzene content).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86101179 CN1024284C (en) | 1986-02-03 | 1986-02-26 | Vehicle gasoline and its preparation from light oil made from coal |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP86101388A EP0236512A1 (en) | 1985-01-23 | 1986-02-03 | Carburettor fuel and process for its preparation from light coal oil |
| CN 86101179 CN1024284C (en) | 1986-02-03 | 1986-02-26 | Vehicle gasoline and its preparation from light oil made from coal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN86101179A CN86101179A (en) | 1987-09-09 |
| CN1024284C true CN1024284C (en) | 1994-04-20 |
Family
ID=25742176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86101179 Expired - Fee Related CN1024284C (en) | 1986-02-03 | 1986-02-26 | Vehicle gasoline and its preparation from light oil made from coal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1024284C (en) |
-
1986
- 1986-02-26 CN CN 86101179 patent/CN1024284C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN86101179A (en) | 1987-09-09 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |